Traction chain



WITNESS:

March 2 1928. 1-,575,535 O J. BROUILLETTE 7 TRAGTI ON CHAIN Filed June 22, 1925 zZj/Wzzzfmgv TToRNEY Patented Mar. 2, 1926.

UNITED sTATF-.s

PTENT OFFICE.l

ORICE J. BROUILLETTE, OF GALESBURG, ILLINOIS.

TRCTION CI-IAIN.

Application filed .Tune 22, 1925. Serial No. 38,886.

This invention'relates to improvements in traction Chains for use upon motor. vehicle lie till

Wheels .and the like and contemplates' the provision of side chains, cross chainsland intermediate Chains, each of which are formed of interconnecting rings-formed of lrelatively heavy Wire or the like having their respective end portions twisted a multi'plicity of times upon themselves in order to form .extra traction or gripping surfaces.

Another object of my invention is'the provision of couplings attached to the endsiof the side' Chains and'intermediate chains and terminate in 'split overlappin-g end portions 'which are adapted to eng'age the corresponding opposite end portions of the side and in- F termediate chains and which owing to the overlapping` relation of the split end portions thereof will prevent accidental displacement of the ring andA prevent the usual circuxnferential movement of the Chains upon tlie motor vehicle Wheels and tires owin; to the rigid connection facilitated therehy. w w

1With-the above and other objects in view, the invention further includes the following novel features and details of construction, to he hereinaftcr more fully desoribed, villustrated in the aecompanying drawing and pointed out in the appended claim.

lin the drawingzyl`he figure is a plan view of a porti'on of my chain. i

Referring to the drawing in detail, wher in like characters of reference denote coi ;esponding' parts, the reference Character 10 indicatesthe side chains, 11 the intermediate cha's having their opposite end rings securedbetween cross chains 12.'

Each of these Chains 10, 11 and 12 are cornposed of a plurality of rings 13 having their opposite end portions making double or multiple twists upon themselves in order that a rigid association is'thus formed between the spi-it en'd portions of the ringsas well as provide. extra traction and gripping surfaces upon these rings 13.

As lclearly illustrated in the figur'e of the drawing I havetillustrated a plurality of couplings which are formed of singularlengths of' relatively heavy wire, bent intermediately upon themselves and receiving one of the terminal rings 1,3 of the side and intermediate chains'lO and 11 respectively and are 'then twisted upon themselves as at 15 to provide a looped 'portion within the rings 13 while the remaining portion of the coupling or length of wire extends outwardly and inwardly in half looped portions and have their corresponding sides *extending in opposite directions and lying'iiush one against theother and which are adapted to receive. therebetween in the process of coupling' the opposite ends of the terminal rings 13 included upon the'oppoite en'd portions' of the cross and intermediate chains 10 -and 11' and to securely hold the same against ac- 'cidenta-l displacement' and hold vthe chain per se 'against eircumfere'ntial moveinent upon the vehicle wheel.v

'It will thns' be noted from the foregoing description and accompanying drawing' that this invention provides an enceedingly useful and' advantageous traction chain in which, owing' to the provision of the multiple twists 'upon the split end portionsof the ringsl, 'extra traction and g'rippii'ig,I surfaces are provided therehy ,which will aid in preventing skidding and owing to 'the construction of'the chain per se and owing to'the relative arrangement of the cross will allow the' intermediate Chains to lie flush against, the tread of. the tire where the traction and anti-skidding' preventive is most needed. lt is also to he noted that chains, intermediate chains' and side Chains., w

owing'to'the specific construction of the coulin reserved t make. such changes as properly fall within the scope of the appended claiin.

Havng dcscrbed my inyent-ion what is claimed is':-

A traction Chain comprising side, inter? mediate and cross'chains respectively, and

each of the Chains formed of 'a pluralty of' inter-connecting split rings having their opposite vend portions forming a;multiplicity off wted portions one upon -the other to 10 form'` tpction surfaces.

In testimny whereofl I aflix my signature.

ORICE J. BROUILLETTE.v 

